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Resolution of Conformationally Chiral mer ‐[Ru(dqp) 2 ] 2+ and Crystallographic Analysis of [δ,δ‐Ru(dqp) 2 ][Δ‐TRISPHAT] 2 (dqp=2,6‐Di(quinolin‐8‐yl)pyridine; TRISPHAT=Tris(tetrachlorocatecholate)phosphate)
Author(s) -
Sharma Sanjeev,
Lombeck Florian,
Eriksson Lars,
Johansson Olof
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201000570
Subject(s) - chemistry , diastereomer , racemization , pyridine , crystallography , tris , stereochemistry , medicinal chemistry , biochemistry
Resolving the problem ! The conformationally chiral bistridentate [Ru(dqp) 2 ] 2+ complex (dqp=2,6‐di(quinolin‐8‐yl)pyridine) was resolved by selective precipitation using [Δ‐TRISPHAT] − (tris(tetrachlorocatecholate)phosphate) as the chiral auxiliary. The X‐ray crystal structure of one diastereomer has been solved (see picture). No evidence for racemization was observed either at elevated temperature or with visible light.